Originally posted by another user
1) Connect Filezilla with blackbox FTP
2) Locate yourself to /dev_hdd0/game/BLES01031/USRDIR
3) Copy and paste my dlc1.edat file into that folder
4) Right click on the /dev_hdd0/game/BLES01031/USRDIR section
5) Press create new directory and name it dlc1
6) Open it and Paste these files:
zombie_cod5_factory_load.bik
zombie_cod5_sumpf_load.bik
zombie_cod5_asylum_load.bik
zombie_cod5_prototype_load.bik
7) After you done that create 2 new directories/folders. Name 1 english and the other 1 french.

Copy these files into ENGLISH folder
img_dlc1.pak
snd_dlc1.english.pak
snd_dlc1.all.pak
zombie_cod5_asylum.ff
zombie_cod5_asylum_load.ff
zombie_cod5_factory.ff
zombie_cod5_factory_load.ff
zombie_cod5_prototype.ff
zombie_cod5_prototype_load.ff
zombie_cod5_sumpf.ff
zombie_cod5_sumpf_load.ff
9) and these into FRENCH folder
snd_dlc1.french.pak
zombie_cod5_asylum.ff
zombie_cod5_asylum_load.ff
zombie_cod5_factory.ff
zombie_cod5_factory_load.ff
zombie_cod5_prototype.ff
zombie_cod5_prototype_load.ff
zombie_cod5_sumpf.ff
zombie_cod5_sumpf_load.ff
10) It will take alot of time to install & transfer ofcourse but heres a small tip to get ur transfers faster.
1) Go to filezilla and press the "Transfers" tab
2) Speed limits
3) Press configure
4) Press the Enable box and thereafter put these numbers in...
Download limit: 0
Upload limit: 1
5) Press ok... and your transfer will be uber fast